Turn up anyway. If you don’t feel like it, turn up to training. If you feel under the weather, turn up. If it’s inconvenient, turn up anyway. If the weather is bad, cold, raining, miserable, whatever, turn up.
If times are tough, turn up. If you are getting married, there’s a death or a birth in the family, do your familial duties, then turn up to training. If you are suffering a really bad divorce, turn up to training in particular. It will provide good perspective.
If there’s an earthquake, flood, fire or a war and the dojo is still standing, train. If you are jet lagged, hungry, sleep deprived and there’s a training session, turn up.
Whatever happens, simply turn up and train and before too long you will have improved exponentially.
Then, instead of celebrating by taking time out, such as a grading pass, turn up. If you have broken leg or another injury, particularly turn up, to watch.
Whatever happens take the energy out of excuses and install it into the actions of turning up and training.
Budo is contingency training and no one will ever attack you when times or your mood or anything else is ideal.